Acari, Oribatida, Oribotritiidae) with a World Checklist, a Key to All Known Species, and a Description of a New Species from China D

Review of Indotritia (Acari, Oribatida, Oribotritiidae) with a world checklist, a key to all known species, and a description of a new species from China D. Liu

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D. Liu. Review of Indotritia (Acari, Oribatida, Oribotritiidae) with a world checklist, a key to all known species, and a description of a new species from China. Acarologia, Acarologia, 2015, 55 (4), pp.397-416. 10.1051/acarologia/20152179. hal-01548608

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Acarologia is under free license and distributed under the terms of the Creative Commons-BY-NC-ND which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original author and source are credited. Acarologia 55(4): 397–416 (2015) DOI: 10.1051/acarologia/20152179

Review of Indotritia (Acari, Oribatida, Oribotritiidae) with a world checklist, a key to all known species, and a description of a new species from China

Dong LIU1,2

(Received 01 August 2015; accepted 14 September 2015; published online 18 December 2015)

1 College of Earth Sciences, Jilin University, Changchun 130061, P. R. China. 2 Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, P. R. China. [email protected]

ABSTRACT — The oribatid mite genus Indotritia Jacot, 1929 (Oribotritiidae) is reviewed. A new species of Indotritia (Indotritia) collected from litter in Tumen, China, Indotritia (Indotritia) tumenensis n. sp., is described and illustrated. Two species, Indotritia (Indotritia) javensis (Sellnick, 1923) and Indotritia (Indotritia) undulata Bayoumi & Mahunka, 1979, are redescribed according to Chinese specimens. Indotritia (I.) javensis shows a jumping ability according to personal observations. A comprehensive checklist and keys to known species of this genus of the world and for each biogeographic region are provided to facilitate determination and future taxonomic studies. KEYWORDS — Soil mites; ptyctimous mites; Zeaotritia; Afrotritia; jumping ability

INTRODUCTION dotritia, since all of its characters are identical with those of the genus Austrotritia. Mahunka (1988) con- Jacot (1929) proposed Indotritia as a sub-genus of sidered that the genus Indotritia contains three sub- Eupththiracarus Ewing, 1917 with Tritia krakatauen- genera: Indotritia (Indotritia), Indotritia (Afrotritia) sis Sellnick, 1924 as type species. Jacot (1930) pro- and Indotritia (Zeaotritia). Then Mahunka (1990b) moted this sub-genus to generic level. Later, Walker treated the sub-genus Macarotritia as a junior syn- (1964) placed Indotritia in the family Oribotritiidae onym of the genus Austrotritia Sellnick, 1959. and pointed out that Jacot did not check the type A total of 34 valid Indotritia species have been re- specimens of T. krakatauensis prior to proposing the ported until now and the genus shows a cosmopoli- genus and misinterpreted Sellnick’s descriptions tan distribution. While studying the oribatid col- and drawings (Sellnick 1923, 1924, 1925). Märkel lections of Northeast Institute of Geography and (1964) also considered that Jacot’s conception of Agroecology, Chinese Academy of Sciences (NIGA) Indotritia was partly erroneous and redefined the and National Zoological Museum of China, Insti- generic characters. Pérez-Íñigo (1986) proposed the tute of Zoology, Chinese Academy of Sciences (ZM- sub-genus Indotritia (Macarotritia) which was men- CAS), three species of Indotritia were identified, in- tioned by Mahunka (1988) as not belonging to In- cluding a new species. Based on these Chinese spec- http://www1.montpellier.inra.fr/CBGP/acarologia/ 397 ISSN 0044-586-X (print). ISSN 2107-7207 (electronic) Liu D. imens, specific remarks on morphological features rostral setae in anterior median position; posterior and divergences are provided. More importantly, a median apodeme absent. Notogaster with 14 pairs comprehensive world checklist of Indotritia species of setae; a terminal sinus present; vestigial setae and a key to all known species are provided. f 1 situated anterior or ventral to h1 setae; openings of opisthonotal glands (gla) and lyrifissures: ia, im, ip, ih, ips. Ventral region: setae h of infracapitu- MATERIALS AND METHODS lar mentum usually very long, considerably longer Measurements (given in µm) and descriptions are than distance between them; palps five-segmented, based on specimens mounted in temporary cavity but its genua and femora not hinged, palpal setal slides that were studied using a light microscope formula: 0-2-0-2-9(1); genito-aggenital scissures in- equipped with a drawing attachment. Terminology complete, these plates are fused anteriorly; inter- generally follows Niedbała (2000, 2011). Holotype nal transversal apodeme present; ano-genital cleft and paratypes are deposited in NIGA. Other speci- present or absent, if present, mostly short; gen- mens are deposited in ZMCAS. ital plates with an extension anteriorly; eight or nine pairs of genital setae present. Legs hetero- tridactylous, with normal chaetome; solenidia on TAXONOMY tarsi II with coupled setae; solenidia on genua IV present; setae d on tibiae IV reduced and coupled Indotritia Jacot, 1929 with the solenidia (updated from Niedbała 2011). Euphthiracarus (Indotritia) Jacot, 1929, p. 213. Remarks — The concept of higher taxa in the Indotritia: Jacot, 1930, p. 242. Euphthiracaroidea is related to the fusion of the Indotritia: Sellnick, 1959, p. 147; Märkel, 1964, p. 24; genital and aggenital plates, and anal and adanal 1968, p. 731; Walker, 1964, p. 34; Aoki, 1980, p. 59; plates, so I think the separation of these plates is Marshall et al., 1987, p. 65; Balogh & Balogh, 1987, a sufficient argument to divide Indotritia into three p. 8; Balogh & Mahunka, 1987, p. 172; Balogh & sub-genera: Indotritia (Indotritia), Indotritia (Afrotri- Balogh, 1988, p. 32; Mahunka, 1990b, p. 50; Nied- tia) and Indotritia (Zeaotritia). bała, 2000, p. 108; 2001a, p. 297; 2001b, p. 85; 2002a, Distribution — Cosmopolitan. p. 42; 2003, p. 275; 2004a, p. 35; 2006a, p. 13; 2011, p. 60; Subías, 2004, p. 43. Key to sub-genus of Indotritia Indotritia (Indotritia) Jacot, 1929: Mahunka, 1988, p. 1. Ano-genital cleft absent; anal plates without se- 354; Balogh & Balogh, 1992, p. 26; Niedbała, 1998a, tae...... Indotritia (Zeaotritia) p. 35; 2001b, p. 85; Subías, 2004, p. 43. — Ano-genital cleft present; anal plate with se- Indotritia (Afrotritia) Mahunka, 1988, p. 354; tae...... 2 Mahunka, 1990b, p. 53; Balogh & Balogh, 1992, p. 2. Ano-adanal suture partly reduced, posterior 26; Niedbała, 1998a, p. 34; 2001b, p. 86; Subías, part of anal and adanal plates fused...... 2004, p. 43...... Indotritia (Afrotritia) Indotritia (Zeaotritia) Mahunka, 1988, p. 354; Nied- — Ano-adanal suture well developed, anal and bała, 2000, p. 337; Subías, 2004, p. 43. adanal plates separated...... Indotritia (Indotritia) Zeaotritia Mahunka, 1988: Balogh & Balogh, 1992, p. 26. Type species: Indotritia krakatauensis Sellnick, Description of a new species from China 1923. Indotritia (Indotritia) tumenensis n. sp. Diagnosis — Median carina absent; one or two (Figure 1) pairs of lateral carinae present; bothridial squamae situated above bothridia; sensilli usually setiform, Diagnosis — Prodorsum with one pair of long lat- smooth; interlamellar setae arising posterolaterally, eral carinae; sensilli club-like, with slightly obtuse

398 Acarologia 55(4): 397–416 (2015)

FIGURE 1: Indotritia (Indotritia) tumenensis n. sp.: A – lateral view of body (legs removed); B – prodorsum, dorsal view; C – ventral plate; D – mentum of infracapitulum; E – trochanter, femur, genu and tibia of leg I. Scale bars: A – C, E = 100 µm; D = 50 µm.

399 Liu D. apex; interlamellar, rostral and notogastral setae ro- IV: 3-2-2(1)-3(1)-11; femur I with strong triangular bust, erect and sparsely covered with small spines; spine in anterodorsal end. lamellar setae procumbent and thinner; exoboth- Material examined — Holotype: 1 adult (NIGA, ridial setae vestigial; vestigial setae f 1 situated an- in alcohol), China: Jilin Province, Yabian, Tumen, terior to setae h1; ano-genital cleft short; formula of from litter near border of China and North Korea, genital setae 5:4; ag2>ag1; two pairs of anal and two 4 Apr. 2015, leg. Dong Liu and Yuting Huang. pairs of adanal setae; lyrifissures iad situated later- Paratypes: 3 adults (NIGA, in alcohol), same data ally between setae ad2 and an2; femur I with strong as holotype. triangular spine in anterodorsal end. Etymology — The new specific name "tume- Description — Measurement of holotype: nensis" refers to the type locality Tumen in Jilin prodorsum: length 275, width 208, height 95, se- Province, China. tae: ss 55, ro 52, in 75, le 46; notogaster: length 545, Remarks — This new species is distinguished width 350, height 440; c1 87, d1 90, e1 85, h1 90, ps1 from all congeneric species with two pairs of anal 88 genito-aggenital plate 152 × 90, ano-adanal plate and two pairs of adanal setae and by the shape of 260 × 65. Range of variations for measurements of sensilli (swollen and club-like versus thin and seti- paratypes: prodorsum: length 270 – 295, width 205 form in other species). – 215, height 92 – 100; notogaster: length 555 – 575, width 360 – 365, height 450 – 465. In this genus, only three species, I. (I.) lanceolata, Integument — Colour brown. Integument finely I. (I.) nunomurai and I. (I.) clavata, have swollen sen- dotted, anterior part of prodorsum with longitudi- silli. Compared with I. (I.) lanceolata and I. (I.) nuno- nal striations. murai, this new species differs by following combi- nation of features: Prodorsum — One pair of long and strong lat- 1) sensilli with slightly obtuse apex (versus with eral carinae present; sensilli (ss) rough and club-like, sharp pointed apex in I. (I.) lanceolata, with thin and with slightly obtuse apex; interlamellar setae (in) long apex in I. (I.) nunomurai); strongly erect, robust, sparsely covered with small 2) one pair of prodorsal lateral carinae present (ver- spines; rostral setae (ro) semi-erect, sparsely cov- sus two pairs in I. (I.) lanceolata and I. (I.) nunomurai); ered with small spines, slightly thinner than inter- 3) two pairs of anal setae (versus one pair); lamellar setae; lamellar setae (le) smooth, procum- 4) two pairs of adanal setae (versus three pairs). bent, much thinner than rostral and interlamellar The new species is distinguished from I. (I.) clavata setae; exobothridial setae (ex) vestigial; comparative by lengths: in>ss>ro>le, in-in/ro-ro ≈ 2.1. 1) sensilli longer (in>ss>ro>le) and clublike (versus Notogaster — Notogastral setae relatively short short (ro>le=in>ss) and fusiform in I. (I.) clavata); ≈ (c1/c1-d1 0.6), curved, robust, sparsely covered 2) exobothridial setae vestigial (versus not vesti- with small spines; setae c1 and c2 remote from ante- gial); rior border, setae c3 near the border; vestigial setae 3) two pairs of anal and two pairs of adanal setae f 1 situated anterior to setae h1. present (versus one pair of anal and three pairs of Ventral region — Suture between genital and adanal setae); aggenital plates reaching the level of setae g7; nine 4) formula of genital setae 5:4 (versus 4:5). pairs of genital setae (g) present, among which four pairs in progenital position; two pairs of aggenital Redescriptions of species from China setae (ag), setae ag2 longer than ag1; ano-genital cleft Indotritia (Indotritia) javensis (Sellnick, 1923) short; two pairs of short anal setae (an) and two (Figures 2 and 3) pairs of adanal setae (ad) present; lyrifissures iad situated laterally between setae ad2 and an2. Measurements — Specimens from Hainan Province Legs — Setal counts for leg segments: I: 1-4-5(2)- (Figs. 2A – H): prodorsum: length 290 – 400, width 5(1)-22(3); II: 1-4-4(1)-3(1)-19(2), III: 3-2-3(1)-3(1)-14, 240 – 305, height 98 – 140, sensillus 125 – 165, setae:

400 Acarologia 55(4): 397–416 (2015)

FIGURE 2: Indotritia (Indotritia) javensis (Sellnick, 1923) (specimen from Hainan Province): A – lateral view of body (legs removed); B – prodorsum, dorsal view; C – ventral plate; D – mentum of infracapitulum; E-H – trochanter, femur, genu and tibia: E, leg I; F, leg II; G, leg III; H, leg IV. Scale bars: A – C, E – H = 100 µm; D = 50 µm.

401 Liu D.

FIGURE 3: Indotritia (Indotritia) javensis (Sellnick, 1923) (specimen from Sichuan Province): A – lateral view of body (legs removed); B – prodorsum, dorsal view; C – ventral plate; D – mentum of infracapitulum; E-H – trochanter, femur, genu and tibia: E, leg I; F, leg II; G, leg III; H, leg IV. Scale bars: A – C, E – H = 100 µm; D = 50 µm.

402 Acarologia 55(4): 397–416 (2015) ro 60, in 110, le 75, distance between setae: ro – ro 40, Apr., 1994, leg. Chong-Hui Liao; 1 adult (in al- in – in 95, le – le 230; notogaster: length 498 – 710, cohol, LD-07-68), at same locality as H94040106, width 385 – 590, height 405 – 600; setae: c1 125, c2 main peak, from litter under arbor forest, 1357M, 125, c3 125, cp 125, d1 120, d2 120, e1 145, e2 140, h1 8 Aug., 2007, leg. Dong Liu; 2 adults (in alco- 150, h2 125, h3 118, ps1 145, ps2 130, ps3 90; distance hol, LD-07-50), Changjiang Li Autonomous County, between setae: c1 – d1 190, d1 – e1 220, e1 – h1 135, h1 Bawangling National Nature Reserve (19º05’18.2"N, – ps1 138; ventral region: genito-aggenital plate 195 109º11’18.4"E), from litter under Dacrydium pier- × 140, ano-adanal plate 370 × 105. rei, 1040M, 3 Aug., 2007, leg. Dong Liu; 1 adult Measurements — Specimens from Sichuan (in alcohol, LD-07-105), Qiongzhong Li and Miao Province (Figs. 3A – H): prodorsum: length 405 – Autonomous County, Limu Mt. (19º10’36.5"N, 455, width 305 – 370, height 150 – 160, sensillus 140 109º44’12.2"E), Qumu, from litter under Dacrydium – 160, setae: ro 65 – 80, in 93 – 110, le 60 – 80, dis- pierrei, 820M, 18 Aug., 2007, leg. Dong Liu; 2 adults tance between setae: ro – ro 60, in – in 110, le – le (in alcohol, LD-07-112), Qiongzhong Li and Miao 280; notogaster: length 750 – 930, width 545 – 670, Autonomous County, Limu Mt. (19º10’54.2"N, 109º45’6.5"E), from litter under deadwood, 946M, height 570 – 705; setae: c1 115, c2 115, c3 100, cp 100, 19 Aug., 2007, leg. Dong Liu; 2 adults (in alcohol, d1 110, d2 100, e1 115, e2 103, h1 110, h2 118, h3 100, LD-07-51), with same data as LD-07-50, from litter ps1 110, ps2 110, ps3 75; distance between setae: c1 – under pine forest. Fujian Province: 2 adults (in al- d1 200, d1 – e1 340, e1 – h1 220, h1 – ps1 175; ventral region: genito-aggenital plate 160 × 200 – 160 × cohol, W-89-33), Wuyi Mt., Guadun (27°44’52.25"N, 250, ano-adanal plate 375 × 105 – 425 × 105. 117°40’59.28"E), from deadwood, 30 Apr., 1989, leg. Hui-Fu Wang; 2 adults (in alcohol, W-89- Prodorsum with two divergent lateral carinae 70), Liancheng County, Quxi Town, Meihua Mt. on each side (specimens from Sichuan Province (25°20’30.22"N, 116°49’19.25"E), from litter, 22 May, with lower ones thinner, and much shorter, par- 1989, leg. Yun-Qi Cui; 2 adults (in alcohol, W-93-18), allel to upper ones); sensilli long, setiform and Fuzhou City (26°4’27.43"N, 119°17’47.68"E), from smooth; interlamellar and rostral setae robust and litter, 29 Mar., 1991, leg. Fu-Sheng Huang. Sichuan covered with small spines; lamellar setae smooth Province: 4 adults (in alcohol, CJ-01-3), Kangding, and much thinner than rostral and interlamellar se- Paomashan Mt. (30°2’30.85"N, 101°57’37.70"E), tae; exobothridial setae vestigial. Notogastral se- 2500 m a.s.l., from moss, 8 Aug., 2001, leg. Jun ≈ tae relatively short (c1/c1 – d1 0.7), curved, ro- Chen. bust, covered with small spines, except setae c3 and ps3 smooth and thin; setae c1 and c2 remote from Remarks — This species, with a semi- anterior border, setae c3 near the border; vestigial cosmopolitan distribution, has many variable fea- setae f 1 ventral or anterior to setae h1. Suture be- tures. Within the Chinese specimens, no differences tween genital and aggenital plates reaching beyond were observed between specimens from Fujian and the level of setae g7; formula of genital setae 4:5; Hainan Province, whereas differences in various two or three pairs of aggenital setae, one pair of features were observed between these latter speci- anal and three pairs of adanal setae present; lyri- mens and those collected in the Sichuan province : ﬁssures iad situated laterally between setae ad2 and 1) shape of notogaster (rounded in specimens from ad3. h>h – h. Setation of legs: I: 1-4-5(2)-5(1)-22(3); II: Hainan and Fujian versus oblong in specimens from 1-4-4(1)-3(1)-19(2), III: 3-2-3(1)-3(1)-14, IV: 3-2-2(1)- Sichuan); 3(1)-11; femur I with distinct triangular spine in an- 2) shape of prodorsal lateral carinae (lower carinae terodorsal end. long and divergent in Hainan and Fujian versus Material examined — ZMCAS: CHINA: Hainan much shorter and nearly parallel in Sichuan); Province: 1 adult (in alcohol, H94040106), Ledong 3) distance between rostral setae (shorter in Hainan Li Autonomous County, Jianfengling National For- and Fujian versus longer in Sichuan); est Park (18º41’48.4"N, 108º47’18.0"E), from litter, 4) number of aggenital setae (two pairs in Hainan

403 Liu D. and Fujian versus three pairs in Sichuan); 3(1)-3(1)-14, IV: 3-2-2(1)-3(1)-11; femur I with strong 5) position of lyrifissures iad (at the middle level be- triangular spine in anterodorsal end. tween setae ad2 and ad3 in Hainan and Fujian versus Material examined — ZMCAS: CHINA: closer to setae ad3 in Sichuan); Jiangxi Province: 1 adult (in alcohol, Yao-22), 6) shape of anterodorsal spine on femur I (strong Lushan Mountain, Xiaotianchi. (28°41’1.15"N, in Hainan and Fujian versus much smaller in 115°51’30.01"E), from litter, 2 Sep., 1983, leg. Wen- Sichuan); Bing Yao. Jiangsu Province: 1 adult (in alco- 7) different size of body size (smaller in Hainan and hol, W-91-4), Nanjing City, Zhongshan Moun- Fujian versus larger in Sichuan). Although these tain (32°3’32.30"N, 118°50’49.50"E), from litter, 30 specimens differ in several morphological features, May, 1991, leg. Fu-Sheng Huang; 1 adult (in alco- these differences are supposed to be included in hol, W-91-5), with same data as W-91-4; 2 adults intraspecific variation. (in alcohol, W-89-42), Nanjing City (32°3’30.11"N, Biological notes — According to my observa- 118°47’47.28"E), eastern suburb, from litter of tea tions, this species is able to jump when they are garden, 12 May, 1989, leg. Hui-Fu Wang. touched. Remarks — Specimens from Jiangxi were inves- tigated and showed conformity with the specimens Indotritia (Indotritia) undulata from Jiangsu. Differences in several features were Bayoumi & Mahunka, 1979 (Figure 4) observed between these specimens (Jiangxi and Measurements — Specimens from Jiangsu Province: Jiangsu provinces) and the holotype from Nepal : prodorsum: length 350 – 372, width 270 – 275, 1) surface of notogaster finely dotted (versus dis- height 95 – 125, sensillus 125, setae: ro 75, in 90, le continuous wavy on holotype); 2) in>le>ro (versus 80, distance between setae: ro – ro 35, in – in 90, le le>in>ro on holotype); 3) three pairs of aggenital – le 230; notogaster: length 590 – 610, width 456 – setae present (versus two pairs on holotype); 4) 470, height 460 – 470; setae: c1 105, c2 96, c3 100, cp genito-aggenital scissures shorter reaching between 95, d1 102, d2 96, e1 112, e2 110, h1 110, h2 105, h3 95, levels of setae g7 and g8 (versus between levels of ps1 100, ps2 105, ps3 80; distance between setae: c1 – setae g6 and g7 on holotype). d1 145, d1 – e1 200, e1 – h1 135, h1 – ps1 120; ventral region: genito-aggenital plate 170 × 122, anal and WORLD CHECKLISTOFTHEGENUS adanal plates 285 × 80. Indotritia JACOT, 1929 Prodorsum with one pair of long lateral carinae; sensilli long, setiform, rigid and smooth; interlamel- Indotritia (Indotritia) Jacot, 1929 lar and rostral setae robust and sparsely barbed; lamellar setae smooth, procumbent, much thinner Indotritia (Indotritia) africana Mahunka, 1984 than rostral and interlamellar setae; exobothridial Indotritia africana Mahunka, 1984a, p. 405, figs. 44 – setae vestigial; comparative length: in>le>ro. No- 46. togastral setae relatively short (c /c –d = 0.72), 1 1 1 Indotritia (Indotritia) africana Mahunka, 1984: Subías, curved, robust, sparsely barbed, except setae c and 3 2004, p. 43. ps smooth and thin; setae c1 and c2 remote from 3 Indotritia africana Mahunka, 1984: Balogh & Balogh, anterior border, setae c near the border; vestigial 3 2002, p. 44; Niedbała, 2006a, p. 13, fig. 5(J – X). setae f anterior to setae h . Suture between genital 1 1 Distribution: South Africa. and aggenital plates reaching between levels of setae g8 and g7; formula of genital setae 4:5; three pairs Indotritia (Indotritia) allocotos Niedbała, 2004 of aggenital setae, one pair of anal and three pairs of adanal setae present; lyrifissures iad situated lat- Indotritia allocotos Niedbała, 2004a, p. 35, fig. 18(A – erally between setae ad2 and ad3. Setation of legs: E). I: 1-4-5(2)-5(1)-22(3); II: 1-4-4(1)-3(1)-19(2), III: 3-2- Indotritia (Indotritia) allocotos Niedbała, 2004: Subías,

404 Acarologia 55(4): 397–416 (2015)

FIGURE 4: Indotritia (Indotritia) undulata Bayoumi & Mahunka, 1979 (specimen from Jiangsu Province): A, lateral view of body (legs removed); B, prodorsum, dorsal view; C, ventral plate; D, mentum of infracapitulum; E – H, trochanter, femur, genu and tibia: E, leg I; F, leg II; G, leg III; H, leg IV. Scale bars: A – C, E – H = 100 µm; D = 50 µm.

405 Liu D.

2004(2006), p. 48. 2012a, p. 28. Distribution: Brazil. Indotritia (Indotritia) consimilis Märkel, 1964: Subías, 2004, p. 43. Indotritia (Indotritia) bellingeri Distribution: Palaearctic Region. Niedbała & Schatz, 1996

Indotritia bellingeri Niedbała & Schatz, 1996, p. 248, Indotritia (Indotritia) cypha Niedbała, 2006 figs. 34 – 49. Indotritia (Indotritia) bellingeri Niedbała & Schatz, Indotritia cypha Niedbała, 2006a, p. 14, fig. 6(A – D). 1996: Subías, 2004, p. 43. Indotritia (Indotritia) cypha Niedbała, 2006: Subías, Indotritia bellingeri Niedbała & Schatz, 1996: Nied- 2004(2007), p. 34. bała, 2001a, p. 297, figs. 51 – 56; 2003, p. 275, fig. Distribution: South Africa. 79 – 91; 2004a, p. 36, fig. 18(F – L); 2008a, p. 764; Niedbała & Ermilov, 2014, p. 255, fig. 2A; Niedbała & Starý, 2015, p. 129. Indotritia (Indotritia) didyma Niedbała, 2006 Distribution: Neotropical Region. Indotritia didyma Niedbała, 2006a, p. 14, fig. 6(E – J). Indotritia (Indotritia) breviseta (Berlese, 1923) Indotritia (Indotritia) didyma Niedbała, 2006: Subías, 2004(2007), p. 34. Tritia berlesei var. breviseta Berlese, 1923, p. 261. Distribution: South Africa. Tritia berlesei var. breviseta Berlese, 1923: Castagnoli & Pegazzano, 1985, p. 52. Oribotritia breviseta (Berlese, 1923): van der Ham- Indotritia (Indotritia) eksteeni Niedbała, 2006 men, 1959, p. 35; Mahunka, 1991, p. 36, figs. 13 – 14. Indotritia eksteeni Niedbała, 2006a, p. 15, fig. 6(K – Indotritia (Indotritia) breviseta (Berlese, 1923): Nied- R). bała, 1993, p. 43, figs. 14 – 16; 1998a, p. 35, figs. 38 – Indotritia (Indotritia) eksteeni Niedbała, 2006: Subías, 40; 2001b, p. 91; Subías, 2004, p. 43. 2004(2007), p. 34. Indotritia breviseta (Berlese, 1923): Balogh & Balogh, Distribution: South Africa. 2002, p. 43. Distribution: Oriental region and Africa. Indotritia (Indotritia) fusa Niedbała, 2006 Indotritia (Indotritia) clavata Wallwork, 1977

Indotritia clavata Wallwork, 1977, p. 196, fig. 80; Indotritia fusa Niedbała, 2006a, p. 15, fig. 6(S – Y). Balogh & Balogh, 2002, p. 43. Indotritia (Indotritia) fusa Niedbała, 2006: Subías, Indotritia (Indotritia) clavata Wallwork, 1977: Nied- 2004(2007), p. 34. bała, 1998a, p. 35, figs. 41 – 46; 2001b, p. 91; Subías, Distribution: South Africa. 2004, p. 43. Distribution: St. Hélène. Indotritia (Indotritia) jacoti Niedbała, 2001 Indotritia (Indotritia) consimilis Märkel, 1964 ? Oribotritia glabrata sensu Jacot 1933, p. 258, figs. Indotritia krakatauensis consimilis Märkel, 1964, p. 25, 26 – 29. fig. 3(a – c). Indotritia jacoti Niedbała, 2001a, p. 295, figs. 40 – 43; Indotritia consimilis Märkel, 1964: Balogh & 2002a, p. 42, figs. 245 – 249. Mahunka, 1983, p. 172; Mahunka, 1990a, p. 750, Indotritia (Indotritia) jacoti Niedbała, 2001: Subías, figs. 32 – 38; Mahunka & Mahunka-Papp, 2004, p. 2004, p. 43. 84; Niedbała, 2011, p. 61, figs. 48(A – H), 49(A – F); Distribution: Neotropical and Nearctic Regions.

406 Acarologia 55(4): 397–416 (2015)

Indotritia (Indotritia) javensis (Sellnick, 1923) Balogh, 1988, p. 32. Indotritia heterotricha Mahunka, 1984b,p. 672, figs. 6 Tritia javensis Sellnick, 1923, p. 38, figs. 3, 14, 26; – 9; Niedbała, 1998a, p. 39. 1925, p. 459, figs. 1 – 4. Indotritia sellnicki Aoki, 1965, p. 137, Abb. 14 – 16; Indotritia javensis (Sellnick, 1923): Märkel, 1964, p. Niedbała & Schatz, 1996, p. 249. 30; Aoki, 1980, p. 60, figs. 22 – 23; Fujikawa et al., Indotritia septentrionalis Mahunka, 1987b, p. 115, 1993, p. 24; Niedbała & Corpuz-Raros, 1998, p. 17, figs. 17 – 19; Niedbała, 1998a, p. 39. figs. 36 – 39; Niedbała, 2000, p. 110, figs. 303 – 324; Indotritia tropica Starý, 1993, p. 289, figs. 3(A – C), 2004b, p. 399; 2006b, p. 119; 2011, p. 62, figs. 50(A – 4(A – B); Niedbała, 1998a, p. 39. O), 51(A – F); 2012a, p. 28; 2012b, p. 187; Balogh & Distribution: Pantropical and subtropical distribu- Balogh, 2002, p. 44; Liu & Chen, 2010, p. 2, figs. 1 – tion. 8. Indotritia (Indotritia) javensis (Sellnick, 1923): Indotritia (Indotritia) lanceolata (Aoki, 1988) Mahunka, 1988, p. 356; Subías, 2004, p. 43. Oribotritia mollis Aoki, 1959, p. 19, Abb. 14(A – C); Austrotritia lanceolata Aoki, 1988, p. 31, figs. 4 – 6; Aoki 1980, p. 60. Subías, 2004, p. 42. Indotritia completa Mahunka, 1987a, p. 260, figs. 1 – Indotritia lanceolata (Aoki, 1988): Niedbała, 2000, p. 5; Niedbała, 2000, p. 110. 116, figs. 329 – 335. Distribution: Oriental, Australian, Palaearctic and Indotritia lanceolata (Aoki, 1988): Niedbała, 2011, p. Subantarctic Regions. 62, figs. 51(G – J), 52(A – C); 2012a, p. 28. Indotritia (Indotritia) lanceolata (Aoki, 1988): Subías, Indotritia (Indotritia) krakatauensis 2004(2012), p. 51. (Sellnick, 1923) Distribution: Japan.

Tritia krakatauensis Sellnick, 1923, p. 39, fig. 4, 15, 27; Indotritia (Indotritia) missouri Niedbała, 2002 1925, p. 461 . Euphthiracarus (Indotritia) krakatauensis (Sellnick, Indotritia missouri Niedbała, 2002a, p. 43, figs. 260 – 1923): Jacot, 1929, p. 213. 263. Indotritia (krakatauensis) krakatauensis (Sellnick, Indotritia (Indotritia) missouri Niedbała, 2002: Sub- 1923): Märkel, 1964, p. 30. ías, 2004, p. 43. Indotritia krakatauensis (Sellnick, 1923): Niedbała, Distribution: USA. 1998b, p. 449, figs. 27 – 43; 2000, p. 114, figs. 325 – 328; 2001a, p. 298, figs. 62 – 65; 2002a, p. 43, figs. Indotritia (Indotritia) montkoupensis 250 – 253; 2002b, p. 182; 2003, p. 276, figs. 92 – 94; Niedbała & Starý, 2014 2004a, p. 37, fig. 18(M – O); 2006b, p. 119; 2008a, p. Indotritia montkoupensis Niedbała & Starý, 2014, p. 764; 2012b, p. 187; Niedbała & Schatz, 1996, p. 249, 34, fig. 1(A – H). figs. 50 – 66; Niedbała & Corpuz-Raros, 1998, p. 21, Indotritia (Indotritia) montkoupensis Niedbała & figs. 40 – 43; Balogh & Balogh, 2002, p. 44; Niedbała Starý, 2014: Subías, 2004(2015), p. 52. & Penttinen, 2007, p. 527. Distribution: Cameroon. Indotritia (Indotritia) krakatauensis (Sellnick, 1923): Niedbała, 1998a, p. 39, fig. 51; 2001b, p. 85; Subías, Indotritia (Indotritia) nuda Mahunka, 1988 2004, p. 43. Indotritia (Zeaotritia) krakatauensis (Sellnick, 1923): Indotritia nuda Mahunka, 1988, p. 354, figs. 24 – 27; Niedbała, 2000, p. 341, figs. 325 – 328. Balogh & Balogh, 2002, p. 43. Indotritia acanthophora Märkel, 1964, p. 27, figs. 4(a Indotritia (Indotritia) nuda Mahunka, 1988: Niedbała, – h); Niedbała & Schatz, 1996, p. 249. 1998a, p. 39, figs. 47 – 50; 2001b, p. 91; Subías, 2004, Indotritia acanthophora Märkel, 1964: Balogh, 1972, p. 43. pl. 64, fig. 8; Balogh & Balogh, 1987, p. 8; Balogh & Indotritia usumbarensis Starý, 1993, p. 286, figs. 1(A

407 Liu D.

– C), 2(A – B); Niedbała, 1998a, p. 39. Indotritia (Indotritia) retusa Distribution: Tanzania. Niedbała & Schatz, 1996

Indotritia (Indotritia) nunomurai Indotritia retusa Hirauchi & Aoki, 2011 Niedbała & Schatz, 1996, p. 251, figs. 67 – 74; Niedbała, 2001a, p. 299, figs. 66 – 71; 2002a, Indotritia nunomurai Hirauchi & Aoki, 2011, p. 103, p. 44, figs. 254 – 259; 2004a, p. 38, fig. 19(A – H); figs. 1 – 10. Indotritia (Indotritia) nunomurai Hirauchi 2006a, p. 17, fig. 7(M – R). & Aoki, 2011: Subías, 2004(2012), p. 51. Indotritia (Indotritia) retusa Niedbała & Schatz, 1996: Distribution: Japan. Subías, 2004, p. 43. Distribution: Neotropical and Ethiopian Regions. Indotritia (Indotritia) paraconsimilis Niedbała, 2012

Indotritia paraconsimilis Niedbała, 2012 in Niedbała Indotritia (Indotritia) tetradis Niedbała, 2004 & Ermilov, 2012, p. 183, ﬁg. 1(A – F). Indotritia (Indotritia) paraconsimilis Niedbała, 2012: Indotritia tetradis Niedbała, 2004, p. 38, ﬁg. 19(I – N). Subías, 2004(2013), p. 52. Indotritia (Indotritia) tetradis Niedbała, 2004: Subías, Distribution: Ethiopia. 2004(2006), p. 49. Indotritia (Indotritia) partita Niedbała, 2006 Distribution: Chile.

Indotritia partita Niedbała, 2006a, p. 16, fig. 7(A – E). Indotritia (Indotritia) partita Niedbała, 2006: Subías, 2004(2007), p. 34. Indotritia (Indotritia) tricarinata Niedbała, 2006 Distribution: South Africa. Indotritia tricarinata Niedbała, 2006c, p. 66, fig. 5(A Indotritia (Indotritia) paulyi Niedbała, 1998 – H); 2011, p. 63, fig. 53(A – I); 2012a, p. 29. Indotritia (Indotritia) paulyi Niedbała, 1998a, p. 41, Indotritia (Indotritia) tricarinata Niedbała, 2006: Sub- figs. 52 – 57; Balogh & Balogh, 2002, p. 44. ías, 2004(2007), p. 34. Indotritia (Indotritia) paulyi Niedbała, 1998: Nied- Distribution: Palaearctic Region. bała, 2001b, p. 85; Subías, 2004, p. 43. Distribution: Ethiopian Region.

Indotritia (Indotritia) phymatha Niedbała, 2006 Indotritia (Indotritia) tripartita Niedbała, 1998

Indotritia phymatha Niedbała, 2006a, p. 16, fig. 7(E – Indotritia (Indotritia) tripartita Niedbała, 1998a, p. 44, L). figs. 58 – 63; 2001b, p. 85. Indotritia (Indotritia) phymatha Niedbała, 2006: Sub- Indotritia (Indotritia) tripartita Niedbała, 1998: Sub- ías, 2004(2007), p. 34. ías, 2004, p. 43. Distribution: South Africa. Indotritia tripartita Niedbała, 1998: Balogh & Balogh, Indotritia (Indotritia) propinqua Niedbała, 1991 2002, p. 44. Distribution: Ethiopian Region. Indotritia propinqua Niedbała, 1991, p. 205, figs. 1 – 14; Niedbała, 2000, p. 116, figs. 336 – 341; Balogh & Balogh, 2002, p. 43. Indotritia (Indotritia) propinqua Niedbała, 1991: Sub- Indotritia (Indotritia) tumenensis n. sp. ías, 2004, p. 43. Distribution: Oriental Region. Distribution: China.

408 Acarologia 55(4): 397–416 (2015)

Indotritia (Indotritia) undulata Indotritia (Zeaotritia) Mahunka, 1988 Bayoumi & Mahunka, 1979 Indotritia (Zeaotritia) aotearoana Ramsay, 1966 Indotritia undulata Bayoumi & Mahunka, 1979, p. 23, Indotritia aotearoana Ramsay, 1966, p. 908, figs. 19 – figs. 21 – 23; Niedbała, 2000, p. 119, figs. 342 – 344; 28; Niedbała, 2012b, p. 187; Balogh & Balogh, 2002, 2011, p. 64, fig. 54(A – L); 2012a, p. 29; Balogh & p. 43. Balogh, 2002, p. 43; Liu & Chen, 2010, p. 5, figs. 9 – Indotritia (Zeaotritia) aotearoana Ramsay, 1966: 16. Mahunka, 1988, p. 356; Niedbała, 2000, p. 337, Indotritia (Indotritia) undulata Bayoumi & Mahunka, figs. 1138 – 1146; Subías, 2004, p. 43. 1979: Mahunka, 1988, p. 356; Subías, 2004, p. 43. Distribution: Australian Region. Indotritia aspera Niedbała, 2000, p. 108, figs. 294 – 302; Niedbała, 2011, p. 64. Indotritia (Zeaotritia) brevipilosa Niedbała, 2000 Indotritia (Indotritia) aspera Niedbała, 2000: Subías, 2004, p. 43. Indotritia (Zeaotritia) brevipilosa Niedbała, 2000, p. Distribution: Oriental and Palaearctic Regions. 340, figs. 1147 – 1154. Indotritia brevipilosa Niedbała, 2000: Niedbała, Indotritia (Indotritia) vestigia Niedbała, 2004 2006b, p. 119; 2012b, p. 187; Niedbała & Penttinen, 2007, p. 527. Indotritia vestigia Niedbała, 2004, p. 39, fig. 20(A – Indotritia (Zeaotritia) brevipilosa Niedbała, 2000: Sub- E). ías, 2004, p. 43. Indotritia (Indotritia) vestigia Niedbała, 2004: Subías, Distribution: Australian Region. 2004(2006), p. 49. Distribution: Cuba. Indotritia (Zeaotritia) brevisetosa Niedbała, 2000

Indotritia (Indotritia) zangherii Indotritia breviseta Niedbała & Colloff, 1997, p. 494, Mahunka & Paoletti, 1984 figs. 6 – 13. "nom. Praeoc." by Berlese, 1923. Indotritia (Zeaotritia) brevisetosa Niedbała & Colloff, Indotritia zangherii Mahunka & Paoletti, 1984, p. 106, 1997, p. 340. fig. VI(1 – 4). Indotritia brevisetosa Niedbała, 2000: Niedbała, Indotritia zangheri Mahunka & Paoletti, 1984: Nied- 2012b, p. 187. bała, 2011, p. 65, fig. 55(A – E); 2012a, p. 29. Indotritia (Zeaotritia) brevisetosa Niedbała, 2000: Sub- Indotritia (Indotritia) zangherii Mahunka & Paoletti, ías, 2004, p. 43. 1984: Subías, 2004, p. 43. Indotritia colloffi Balogh & Balogh, 2002, p. 43; Sub- Distribution: Italy. ías, 2004, p. 43. Distribution: Australian Region. Indotritia (Afrotritia) Mahunka, 1988 Key to species of Indotritia of the world Indotritia (Afrotritia) compacta Mahunka, 1988 1. Ano-genital cleft absent; anal plates without se- Indotritia (Afrotritia) compacta Mahunka, 1988, p. tae...... 2 352, figs. 20 – 23. — Ano-genital cleft present; anal plate with se- Indotritia (Afrotritia) compacta Mahunka, 1988: Nied- tae...... 4 bała, 1998a, p. 34, figs. 64 – 75; 2001b, p. 86; Subías, 2004, p. 43; Niedbała & Starý, 2014, p. 32. 2. Two pairs of prodorsal lateral carinae Indotritia compacta Mahunka, 1988: Balogh & present...... I. (Z.) brevipilosa Balogh, 2002, p. 43. — One pair of prodorsal lateral carinae present . . . 3 Distribution: Ethiopian Region.

409 Liu D.

3. Sensilli thick and barbed distally, shorter than — Sensilli pointed distally and longer than inter- half height of prodorsum ...... I. (Z.) aotearoana lamellar setae; exobothridial setae vestigial ...... 14 — Sensilli narrow and smooth, longer than height of prodorsum ...... I. (Z.) brevisetosa 14. Setae ad2 situated nearly in the middle between setae ad1 and ad3 ...... I. (I.) africana 4. Ano-adanal suture partly reduced, posterior part — Setae ad2 situated much more close to setae of anal and adanal plates fused . . . . . I. (A.) compacta ad3...... I. (I.) undulata — Ano-adanal suture well developed, anal and adanal plates separated ...... 5 15. Most notogastral setae vestigial. . . .I. (I.) vestigia — Notogastral setae well developed ...... 16 5. Anterior part of prodorsum humped...... I. (I.) cypha 16. Three pairs of prodorsal lateral carinae — Anterior part of prodorsum without hump . . . . 6 present...... 17 — Two pairs of prodorsal lateral carinae 6. Anal setae absent ...... I. (I.) allocotos present...... 19 — Anal setae present...... 7 17. Two pairs of anal setae present...... I. (I.) tricarinata 7. One pair of prodorsal lateral carinae present . . . 8 — One pair of anal setae present ...... 18 — More than one pair of prodorsal lateral carinae present ...... 15 18. Three pairs of adanal setae present; ano-genital cleft longer than anal plate...... I. (I.) tripartita 8. Prodorsal lateral carinae bifurcated dis- — Two pairs of adanal setae present; ano-genital tally...... I. (I.) partita cleft shorter than anal plate ...... I. (I.) jacoti — Prodorsal lateral carinae not bifurcated distally...... 9 19. Two pairs of anal and three pairs of adanal setae present ...... I. (I.) breviseta 9. Four pairs of adanal setae present. . .I. (I.) tetradis — Arrangements of anal and adanal setae not as — Three pairs of adanal setae present ...... 10 above ...... 20

10. Two pairs of anal setae present ...... 11 20. Sensilli fusiform or with swollen portion . . . . 21 — One pair of anal setae present ...... 12 — Sensilli setiform without swollen portion . . . . . 25

11. Sensilli club-like and obtuse distally; exoboth- 21. Sensilli swollen in proximal part...... ridial setae vestigial ...... I. (I.) tumenensis n. sp...... I. (I.) phymatha — Sensilli setiform and attenuate distally; exoboth- — Sensilli not swollen in proximal part...... 22 ridial setae not vestigial ...... I. (I.) montkoupensis 22. Sensilli fusiform in shape ...... I. (I.) fusa 12. Sensilli short and fusiform ...... I. (I.) clavata — Sensilli not fusiform in shape...... 23 — Sensilli long and setiform ...... 13 23. Sensilli with thin and elongated 13. Sensilli obtuse distally and shorter than in- apex...... I. (I.) nunomurai terlamellar setae; exobothridial setae not vesti- — Sensilli without thin and elongated apex . . . . . 24 gial...... I. (I.) retusa

410 Acarologia 55(4): 397–416 (2015)

24. Sensilli swollen in distal half; setae ad2 situated 31. Exobothridial setae not vestigial; lyrifissures iad much more close to setae ad3; lyrifissures iad situ- situated lateral to setae ad2 ...... I. (I.) bellingeri ated at the level of setae ad2 ...... I. (I.) didyma — Exobothridial setae vestigial; lyrifissures iad sit- — Sensilli with spindle-shaped head; setae ad2 situ- uated postero-lateral to setae ad2 ...... 32 ated nearly in the middle between setae ad1 and ad3; lyrifissures iad situated postero-lateral to the level 32. le>ss>in>ro; genito-aggenital scissures reaching of setae ad3 ...... I. (I.) lanceolata setae g6 ...... I. (I.) eksteeni — ss>in>le=ro; genito-aggenital scissures reaching 25. One pair of anal setae and three pairs of adanal setae g7 ...... I. (I.) paraconsimilis setae present ...... 26 — Two pairs of anal setae and two pairs of adanal 33. Exobothridial setae not vestigial; lyrifissures iad setae present ...... 29 situated between setae ad1 and ad2 .. I. (I.) consimilis — Exobothridial setae vestigial; lyrifissures iad sit- 26. Prodorsal and notogastral setae minute and uated lateral to setae ad2 ...... 34 flexible; genito-aggenital scissures shorter than half length of genital plates ...... I. (I.) missouri 34. Interlamellar setae bent distally; notogastral se- — Prodorsal and notogastral setae normal length tae long, longer than 1/3 length between setae c1 and rigid; genito-aggenital scissures longer than and d1 ...... I. (I.) krakatauensis half length of genital plates ...... 27 — Interlamellar setae not bent distally; notogastral setae minute, shorter than 1/5 length between setae c and d ...... I. (I.) nuda 27. Exobothridial setae not vestigial . . . . I. (I.) paulyi 1 1 — Exobothridial setae vestigial...... 28 Key to species of Indotritia of Oriental Region

28. Setae ad3 situated at the level of ano-genital cleft; lyriﬁssures iad situated postero-lateral to setae 1. One pair of prodorsal lateral carinae present...... I. (I.) undulata ad2; anterodorsal spine on femur I hooked...... I. (I.) propinqua — More than one pair of prodorsal lateral carinae present...... 2 — Setae ad3 situated far posteriorly to the level of anal setae; lyriﬁssures iad situated antero- lateral to ad2; anterodorsal spine on femur I not 2. Two pairs of anal and three pairs of adanal setae hooked...... I. (I.) javensis present ...... I. (I.) breviseta — Arrangements of anal and adanal setae not as above ...... 3 29. Interlamellar setae almost half of height of prodorsum ...... 30 — Interlamellar setae no longer than fourth of 3. Sensilli fusiform or with swollen portion ...... 4 height of prodorsum ...... 33 — Sensilli setiform without swollen portion ...... 5

30. Sensilli with short cilia; three pairs of aggenital 4. Sensilli with thin and elongated setae present; lyriﬁssures iad situated lateral anteri- apex...... I. (I.) nunomurai — Sensilli without thin and elongated orly to setae ad2 ...... I. (I.) zangheri — Sensilli smooth; two pairs of aggenital setae apex...... I. (I.) lanceolata present; lyriﬁssures iad situated at the level or lateral posteriorly to setae ad2 ...... 31 5 Two pairs of anal setae and two pairs of adanal setae present ...... I. (I.) krakatauensis

411 Liu D.

— One pair of anal setae and three pairs of adanal Key to species of Indotritia of Australian Region setae present ...... 6 1. Ano-genital cleft absent; anal plates without setae...... 2 6. Setae ad3 situated at the level of ano- — Ano-genital cleft present; anal plate with se- genital cleft; lyriﬁssures iad situated postero- tae...... 4 lateral to setae ad2; anterodorsal spine on femur I hooked...... I. (I.) propinqua 2. Two pairs of prodorsal lateral carinae — Setae ad3 situated far posteriorly to the level present...... I. (Z.) brevipilosa of anal setae; lyriﬁssures iad situated antero- — One pair of prodorsal lateral carinae present . . . 3 lateral to ad2; anterodorsal spine on femur I not hooked...... I. (I.) javensis 3. Sensilli thick and barbed distally, shorter than half height of prodorsum ...... I. (Z.) aotearoana Key to species of Indotritia of Palaearctic Region — Sensilli narrow and smooth, longer than height of prodorsum ...... I. (Z.) brevisetosa 1. One pair of prodorsal lateral carinae present . . . 2 — More than one pair of prodorsal lateral carinae 4. One pair of anal setae and three pairs of adanal present...... 3 setae present ...... I. (I.) javensis — Two pairs of anal setae and two pairs of adanal 2 One pair of anal setae present ...... I. (I.) undulata setae present ...... I. (I.) krakatauensis — Two pairs of anal setae present...... I. (I.) tumenensis n. sp. Key to species of Indotritia of Nearctic Region

3. Three pairs of prodorsal lateral carinae 1. Three pairs of prodorsal lateral carinae present...... I. (I.) tricarinata present...... I. (I.) jacoti — Two pairs of prodorsal lateral carinae present. .4 — Two pairs of prodorsal lateral carinae present. .2

4. Sensilli fusiform or with swollen portion ...... 5 2. One pair of anal setae and three pairs of adanal — Sensilli setiform without swollen portion ...... 6 setae present ...... I. (I.) missouri — Two pairs of anal setae and two pairs of adanal 5. Sensilli with thin and elongated setae present ...... I. (I.) krakatauensis apex...... I. (I.) nunomurai — Sensilli without thin and elongated Key to species of Indotritia of Ethiopian Region apex...... I. (I.) lanceolata 1. Ano-adanal suture partly reduced, posterior part 6. One pair of anal setae and three pairs of adanal of anal and adanal plates fused . . . . . I. (A.) compacta setae present ...... I. (I.) javensis — Ano-adanal suture well developed, anal and — Two pairs of anal setae and two pairs of adanal adanal plates separated ...... 2 setae present ...... 7 2. Anterior part of prodorsum humped...... 7. Interlamellar setae almost half of height of ...... I. (I.) cypha prodorsum ...... I. (I.) zangheri — Anterior part of prodorsum without hump . . . . 3 — Interlamellar setae no longer than fourth of height of prodorsum...... I. (I.) consimilis 3. One pair of prodorsal lateral carinae present . . . 4 — More than one pair of prodorsal lateral carinae

412 Acarologia 55(4): 397–416 (2015) present...... 8 14. Interlamellar setae almost half of height of prodorsum ...... 15 4. Prodorsal lateral carinae bifurcated dis- — Interlamellar setae no longer than fourth of tally...... I. (I.) partita height of prodorsum ...... 16 — Prodorsal lateral carinae not bifurcated distally...... 5 15. le>ss>in>ro; genito-aggenital scissures reaching setae g6 ...... I. (I.) eksteeni 5. Two pairs of anal setae present...... — ss>in>le=ro; genito-aggenital scissures reaching ...... I. (I.) montkoupensis setae g7 ...... I. (I.) paraconsimilis — One pair of anal setae present ...... 6 16. Interlamellar setae bent distally; notogastral se- 6. Sensilli short and fusiform ...... I. (I.) clavata tae long, longer than 1/3 length between setae c1 — Sensilli long and setiform ...... 7 and d1 ...... I. (I.) krakatauensis — Interlamellar setae not bent distally; notogastral 7. Sensilli obtuse distally and shorter than in- setae minute, shorter than 1/5 length between setae terlamellar setae; exobothridial setae not vesti- c1 and d1 ...... I. (I.) nuda gial...... I. (I.) retusa — Sensilli pointed distally and longer than interlamellar setae; exobothridial setae vestigial...... Key to species of Indotritia of the Neotropical ...... I. (I.) africana Region

1. Anal setae absent ...... I. (I.) allocotos 8. Three pairs of prodorsal lateral carinae — Anal setae present...... 2 present...... I. (I.) tripartita — Two pairs of prodorsal lateral carinae present. .9 2. One pair of prodorsal lateral carinae present . . . 3 — More than one pair of prodorsal lateral carinae 9. Two pairs of anal and three pairs of adanal setae present...... 4 present ...... I. (I.) breviseta — Arrangements of anal and adanal setae not as above ...... 10 3. Four pairs of adanal setae present. . .I. (I.) tetradis — Three pairs of adanal setae present . . I. (I.) retusa 10. Sensilli fusiform or with swollen portion . . . . 11 — Sensilli setiform without swollen portion . . . . . 13 4. Most notogastral setae vestigial . . . . . I. (I.) vestigia — Notogastral setae well developed...... 5 11. Sensilli swollen in proximal part...... I. (I.) phymatha 5. Three pairs of prodorsal lateral carinae — Sensilli not swollen in proximal part...... 12 present...... I. (I.) jacoti — Two pairs of prodorsal lateral carinae present. .6 12. Sensilli fusiform in shape ...... I. (I.) fusa — Sensilli not fusiform in shape ...... I. (I.) didyma 6. Interlamellar setae almost half of height of prodorsum, not bent distally; exobothridial setae 13. One pair of anal setae and three pairs of adanal well developed, always two pairs of aggenital se- setae present ...... I. (I.) paulyi tae...... I. (I.) bellingeri — Two pairs of anal setae and two pairs of adanal — Interlamellar setae no longer than fourth of setae present ...... 14 height of prodorsum; bent distally, exobothridial setae vestigial, sometimes three or four pairs of

413 Liu D. aggenital setae ...... I. (I.) krakatauensis Balogh J., Balogh P. 2002 — Identification Keys to the Ori- batid Mites of the extra-Holarctic Regions. I — Well- Press Publishing Limited, Miscolc. pp. 957. Balogh J., Mahunka S. 1983 — Primitive Oribatids of ACKNOWLEDGEMENTS the Palaearctic Region — Akadémiai Kiadó, Budapest. pp. 372. I am very grateful to all those who collected speci- Bayoumi B.-M., Mahunka S. 1979 — Ergebnisse der mens mentioned above. This work was supported Bhutan-Expedition 1972 des Naturhistorischen Muse- by the Funds for The Excellent Youth Scholars of ums in Basel, Acari: Oribatida (Part I-II.) — Entomo- logica Basiliensia, 4: 13-30. "IGA, CAS" (DLSYQ2012004), the Knowledge In- Berlese A. 1923 — Centuria sesta di Acari nuovi — Redia, novation Programs of the Chinese Academy of 15: 237-262. Sciences (KSCX2-EW-Z-8), the Major Program of Castagnoli M., Pegazzano F. 1985 — Catalogue of the National Natural Science Foundation of China— Berlese Acaroteca — Istituto Sperimentale per la Zo- Fauna Sinica (31493021), the key research pro- ologia Agraria, Sezione Acarologia, Firenze. pp. 490. gram of the Chinese Academy of Sciences (Grant Fujikawa T., Fujita M., Aoki J. 1993 — Checklist of ori- No. KZZD-EW-TZ-16), the Scientific and Tech- batid mites of Japan (Acari: Oribatida) — Journal of nological Developing Scheme of Jilin Province Acarological Society of Japan, 2(Suppl. 1): 1-121. (No. 20130206073), the National Natural Science- Hirauchi Y., Aoki J. 2011 — New species of the genus In- Foundation of China (Grant No. 31101617), the dotritia from Central Japan (Acari: Oribatida) — Jour- China Postdoctoral Science Foundation funded nal of Acarological Society of Japan, 20(2): 103-107. project [Grant No. 2015M580243], and the State Jacot A.-P. 1929 — New oribatoid mites — Psyche, 35(4): Key Program of National Natural Science of China 213-215. (Grant No. 41430857). Jacot A.-P. 1930 — Oribatid mites of the subfamily Ph- thiracarinae of the northeastern United States — Pro- ceedings of the Boston Society of Natural History, 39(6): 209-261. REFERENCES Jacot A.-P.1933 — Phthiracarid mites of Florida — Journal Aoki J. 1959 — Die Moosmilben (Oribatei) aus Südjapan of the Elisha Mitchell Scientific Society, 48: 232-267. — Bulletin of the Biogeographical Society of Japan, Liu D., Chen J. 2010 — New records of a genus and 21(1): 1-22. two species of family Oribotritiidae (Acari: Oribatida) Aoki J. 1965 — Oribatiden (Acarina) Thailands. I — Na- from China — Acta Arachnologica, 19(1): 1-6. ture Life Southeast Asia, 4: 129-193. Mahunka S. 1984a — Oribatids of the eastern part of the Ethiopian Region (Acari) VI — Acta Zoologica Hun- Aoki J. 1980 — A revision of the oribatid mites of Japan. garica, 30(3-4): 393-444. I. The families Phthiracaridae and Oribotritiidae — Bulletin of the Institute of Environmental Science and Mahunka S. 1984b — Contributions à l’étude de la faune Technology, Yokohama National University, 6(2): 1-89. terrestre des îles granitiques de l’archipel des Séchelles — Revue de Zoologie Africaine, 98(3): 670-676. Aoki J. 1988 — Oribatid mites (Acari: Oribatida) from the Tokara Islands, Southern Japan-II — Bulletin of the Mahunka S. 1987a — A survey of the oribatid (Acari) Biogeographical Society of Japan, 43(6): 31-33. fauna of Vietnam, I — Annales Historico-Naturales Musei Nationalis Hungarici, 79: 259-279. Balogh J. 1972 — The Oribatid Genera of the World — Akadémiai Kiádo, Budapest. pp. 188. Mahunka S. 1987b — Neue und interessante Milben aus dem Genfer Museum LVIII. Some primitive oribatids Balogh J., Balogh P. 1987 — Identification keys of the pty- from the Cape Verde Islands (Acari: Oribatida) — Re- choid Mixonomata of the Neotropical region — Acta vue Suisse de Zoologie, 94(1): 109-116. Zoologica Hungarica, 33(1-2): 1-36. Mahunka S. 1988 — The oribatid fauna of Tanzania Balogh J., Balogh P. 1988 — Oribatid Mites of the Neotrop- (Acari) I — Acta Zoologica Hungarica, 34(4): 345-378. ical Region. I — Akadémiai Kiadó, Budapest. pp. 335. Mahunka S. 1990a — The Oribatid (Acari: Oribatida) Balogh J., Balogh P. 1992 — The Oribatid Mite Genera of fauna of the Bätorliget Nature Reserves (NE Hungary) the World. vol. 1 — Hungarian Natural History Mu- — The Bátorliget Nature Reserves – after forty years. seum, Budapest. pp. 263. pp. 727-783.

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